Worth sharing. For this user, IPS LCD is a big improvement over OLED. Feel free to add your own anecdotes.
"With OLED screens, it starts with dry, burning eyes and dull pain. It becomes excruciating pain after a while, vertigo, and migraine headaches. The first stage usually comes after an hour or so, but sometimes much shorter). How long it takes for the second part to start varies a lot, but once it starts, I cannot look at any screens (OLED or LCD, TV or phone) without it feeling like a nail is being driven into my eyes. It takes one to three days for this to reset to where I can comfortably use screens again.
With the LCDs, it is generally just the first stage and doesn't usually make it to the second stage, although I do get dizziness from them sometimes. It isn't all LCDs, but it is every iPhone LCD screen I've tried. Even my iPhone 6S+ causes me problems after a while (much longer than my iPhone SE 3 or iPhone 11).
I'm not talking about solid usage here either, just the normal messaging, maybe a game once in a while, maybe a few short videos.
I've tried all the "fixes". The most they do for me is lengthen the amount of time before I'm in serious pain.
My eink phone has been a great boon. I can actually read e-books again. It can be a little wonky though, and I usually find myself carrying a second phone just in case."
"I don't do much gaming on my PC. I am a developer though and use my computers a lot.
I have a Linux machine from System76 that has a IPS screen with a matte finish. That machine causes me no problems other than the usual eye tiredness if using any screen all day long.
My work gives me a Surface Studio Pro and a MacBook Pro M2 Max. The Surface is an IPS display and usually doesn't cause me much problem -- no noticable PWM. The screen is a little small for me. The MacBook Pro M2 Max is a Mini LCD display. It has PWM and is only usable for an hour or so before I start having problems. It is not as bad as an OLED Phone, but it is worse than an IPS iPhone.
At work I have two HP IPS monitors which I can plug either my Surface or Mac into. These do not cause me any problems.
That said, they have LED lighting with PWM at my work that is horrible for me. I have my cubicle pretty much cut off from the lighting or else I will end up with pain and vertigo. I had to get a note from my optometrist saying that I needed accommodations under ADA to be allowed to cut off my cubicle from the lights."
Source: https://www.reddit.com/r/PWM_Sensitive/comments/1l6fnl5/how_to_know_if_ill_tolerate_it_iphone_oled/
Also, I asked another sensitive user what he is using now. Reply:
"Xiaomi 13T
I tried Samsung S9+ in 2019 and it didn't work for me. Was afraid to touch OLED until I saw a post about 13T from top_g in the sub and decided to give the phone a try
First week was horrible. Then it started to get better. Now I use it all day. Tried xiaomi 14 ultra last year and it was terrible."
Of special interest there: "First week was horrible. Then it started to get better. Now I use it all day."
Most will have a horrible day with a new screen and dismiss it. This person had a horrible week, and yet continued to use it. Then found out he can use it comfortably long term.
Therefore, it goes to show that in some cases continued use leads to comfortable results. I'm reluctant to suggest the Xiaomi 13T as a usable device given his horrible first week with it, but it is what he is comfortably using to this day.
Also, he said:
"You know what's fun? E-ink bigme hibreak pro didn't work for me. So there's something else besides flickering for people."
And:
"As for the OLED and IPS. I think there's something bad about the LED lights. I had an honor magicbook 16 (2021) with an IPS screen and it gave me so much strain without any flickering."